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Change-Id: I1fd4bf85cd709de1c14ed2895d045018f79bc61f
Reviewed-on: https://pdfium-review.googlesource.com/26950
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
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This changes the return value from uint32_t to FX_FILESIZE, which is
the type the methods is uses return. The existing code does an
unguarded static cast, so something like -1 could cause a very large
value being returned.
This change has a cascading impact up to the top of the progressive
codec, which now has to handle negative values gracefully.
Change-Id: I813fb71e932dd5da014dbaed0dbf3bb28f8d4e9f
Reviewed-on: https://pdfium-review.googlesource.com/26450
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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Do some additional checks in test cases where pages were rendered but
the resulting bitmap was immediately destroyed.
Change-Id: I2f4678140cdc672ab4ced70f748135464447ff59
Reviewed-on: https://pdfium-review.googlesource.com/25510
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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Add replacement methods that make themselves clear as to what they are
rendering, and return unique_ptrs to help prevent leakage. Mark existing
methods deprecated.
Change-Id: I9055407e614dfbe765428fb32a7da64df3418d1d
Reviewed-on: https://pdfium-review.googlesource.com/25470
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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BUG=chromium:808336
Change-Id: I3201805a374b5403149eca701714ef4369a2e337
Reviewed-on: https://pdfium-review.googlesource.com/25630
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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BMPDecompressor -> CFX_BmpDecompressor
CBmpContext -> CFX_BmpContext
BUG=chromium:808336
Change-Id: If8ef5294171e3619ae1d7c5175ddf23b7673ec78
Reviewed-on: https://pdfium-review.googlesource.com/25611
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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BUG=chromium:808336
Change-Id: Id721787dd77d1bcac6daf6e3c149f79e8d1d9fe4
Reviewed-on: https://pdfium-review.googlesource.com/25610
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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Currently there is no indication in the name of it being a member
variable and the capitalization is inconsistent. This CL brings them
all into line with Chromium style.
BUG=chromium:808336
Change-Id: Iaed0272b69350f316371a67eb513934a0169f451
Reviewed-on: https://pdfium-review.googlesource.com/25430
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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Bug: chromium:802094
Change-Id: I99d2d75cd431afe1cdb966e1431143ab43dd9a73
Reviewed-on: https://pdfium-review.googlesource.com/24730
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
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Bug: chromium:797726
Change-Id: Ib13d5a4a78de462f1257f1103728f2a4111cb916
Reviewed-on: https://pdfium-review.googlesource.com/24510
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
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BUG=chromium:805881
Change-Id: I3b4914325833c859285a4af1f6e326872cbf1b18
Reviewed-on: https://pdfium-review.googlesource.com/24091
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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BUG=chromium:805881
Change-Id: I91266367296218998d011dd5f62e0b4c6df291a3
Reviewed-on: https://pdfium-review.googlesource.com/24070
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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The guard being removed was moved lower down in the code, but it
appears the original creeped back in while I was rebasing at some
point. This is causing clusterfuzz failures.
BUG=chromium:803732,chromium:803735
Change-Id: I5bcc6046e64d6060a674f390e243dd8eda9d1d17
Reviewed-on: https://pdfium-review.googlesource.com/23250
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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Refactoring the big image format switch in ContinueDecode to call
separate methods for each image format, instead of having one giant
switch block. This should have no functional changes.
BUG=pdfium:976
Change-Id: Ide4892526ee823023c233f0e43b1c98ac8bd1477
Reviewed-on: https://pdfium-review.googlesource.com/23134
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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Refactoring the big image format switch in StartDecode to call
separate methods for each image format, instead of having one giant
switch block. This should have no functional changes.
BUG=pdfium:976
Change-Id: I4e609ecaec0c5d0e173957c0795555b37c38f9a2
Reviewed-on: https://pdfium-review.googlesource.com/23131
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Refactoring the big image format switch in DetectImageType to call
separate methods for each image format, instead of having one giant
switch block. This should have no functional changes.
BUG=pdfium:976
Change-Id: I52cc83879da20b33d471420016f6b1eb53993f0b
Reviewed-on: https://pdfium-review.googlesource.com/23130
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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By catching this early we are now actually returning the wrong
value. The bad value should be passed into the jpeg library code,
which will cause a fatal error and jump out to the common error
handling code for this method.
BUG=pdfium:986
Change-Id: Ib3d32939aa38aece887c014c3a477407ee178193
Reviewed-on: https://pdfium-review.googlesource.com/23119
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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This moves the setjmps needed for handling fatal errors in the jpeg
library up a level to be in line with how other instances of this are
being modified. This additionally reduces the number of times that
setjmp needs to be called and documents why it is occurring.
This covers the Start and ReadScanLine methods. It also adds in
setting the error member, which had been missed in previous CLs.
BUG=pdfium:986
Change-Id: I7db87288ffe0ee8b29899d97035c30ad812da76a
Reviewed-on: https://pdfium-review.googlesource.com/23117
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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This move the setjmp needed for handling fatal errors in the jpeg
library up a level to be in line with how other instances of this are
being modified. This additionally reduces the number of times that
setjmp needs to be called and documents why it is occuring.
BUG=pdfium:986
Change-Id: Ia57821e1ce65aae811618effb3f2fa6256e1ab8c
Reviewed-on: https://pdfium-review.googlesource.com/23115
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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The current implementation treats both returning false and longjmp'ing
out of jpeg_start_decompress as indicating that the decompression has
paused and needs more data. This is incorrect, in reality only the
false return value indicates this. The longjmp path indicates a fatal
error in the processing of the jpeg. The default implementation
actually calls exit() in this case, and the documentation explicitly
calls out that in this case recovery isn't possible and the decode
process will have to start from scratch.
This resolves a situation where the progressive decoder would get a
malformed jpeg and keep on grabbing blocks from it and try to start
decoding it. This would eventually fail when it ran out of data to
read, but would cause a large memory leak and a crash on the MSAN
fuzzers.
BUG=pdfium:986,chromium:798665
Change-Id: Ifd2ed7a2dc46fa20bab34e9c461a8d4c4718c4d7
Reviewed-on: https://pdfium-review.googlesource.com/23072
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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Change-Id: I3efc57cd7325d16e3ca8ebdeeaec06012b2c56e3
Reviewed-on: https://pdfium-review.googlesource.com/20110
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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Bug:
Change-Id: I0c930ca30637f58af3b60ed8f1383bd9234a1723
Reviewed-on: https://pdfium-review.googlesource.com/19850
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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This CL removes the CollectionSize and updates call locations as needed.
Bug: pdfium:774
Change-Id: I813c500b3a17a194407ceb1304252b9b16fe1779
Reviewed-on: https://pdfium-review.googlesource.com/19590
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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This gets rid of most core/ non-const ref passing, either by passing by
pointer-to-pointer instead, or by returning std::pair.
Change-Id: Id7bdc355a1a725a05f9fa2f1e982ca8c975beef1
Reviewed-on: https://pdfium-review.googlesource.com/19030
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Change-Id: I24404be0065156a1cfdec31bafdf72c27fa70142
Reviewed-on: https://pdfium-review.googlesource.com/17792
Reviewed-by: Chris Palmer <palmer@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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PartitionAlloc does not handle free(NULL), so _TIFFfree() needs to do
the check, just like png_free_default() and _cmsFree() for other third
party code.
BUG=chromium:780709
Change-Id: I4e2ff0ba642c66e4a73e151c9ab42ebb42d34a5b
Reviewed-on: https://pdfium-review.googlesource.com/17791
Reviewed-by: Chris Palmer <palmer@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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This CL simplifies the OS == WIN{32|64} checks to be PLATFORM == WINDOWS
checks.
Change-Id: I1493d316dd457b0228e4ef39db4cf1d2b8abf97d
Reviewed-on: https://pdfium-review.googlesource.com/14870
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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These are error strings are set but never used for anything.
BUG=pdfium:907
Change-Id: I08d9547009116f7386d15b4a965b9a99c7bf1997
Reviewed-on: https://pdfium-review.googlesource.com/15010
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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Moved everything from core/fxcodec/lgif to core/fxcodec/gif
Converted CGifContext -> CFX_GifContext
Removed _ptr suffixes from CXF_GifContext
Movef fx_gif.* -> cfx_gif.*
Renamed structs in cfx_gif.h
Renamed members of CFX_GifImage
Renamed members of CFX_GifContext
Renamed CFX_LZWDecoder -> CFX_LZWDecompressor
BUG=pdfium:903
Change-Id: I537e905e935da26832e6bbdc03e0373ed5500bcb
Reviewed-on: https://pdfium-review.googlesource.com/14990
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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With the conversion of internal string sizes to size_t, these wrappers
are no longer needed. Replacing them with strlen and wcslen
respectively.
BUG=pdfium:828
Change-Id: Ia087ca2ddaf688a57ec9bd9ddfb8533cbe41510d
Reviewed-on: https://pdfium-review.googlesource.com/14890
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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BUG=pdfium:828
Change-Id: I5c40237433ebabaeabdb43aec9cdf783e41dfe16
Reviewed-on: https://pdfium-review.googlesource.com/13230
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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This CL removes unreachable code and also removes the flag
Icc_Format_DEFAULT which becomes unused.
Bug: chromium:346399
Change-Id: I1cdd0f70ffec2abcd20ddf5b181273971b92ecaa
Reviewed-on: https://pdfium-review.googlesource.com/14850
Commit-Queue: Nico Weber <thakis@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
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This CL renames the FX_OS defines to have _OS_ in their names and drops
the _DESKTOP suffix. The FXM defines have been changed to just FX.
Change-Id: Iab172fba541713b5f6d14fb8098baf68e3364c74
Reviewed-on: https://pdfium-review.googlesource.com/14833
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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The _FX_IOS_ define is never defined, so it isn't useful to check
_FX_OS_ against. Remove.
Change-Id: I90b50a1a0dc165073ed223cbfe861b9a227818dd
Reviewed-on: https://pdfium-review.googlesource.com/14831
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
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Previous implementation assumed that if the local colour palette was
not specified and the global palette had its size specified, then use
the global. If the global palette is disable, it will not have data,
but it may have a size. Technically the size is giberish in this case,
but the value is allowed to be non-zero, so isn't a sufficient check.
BUG=chromium:768089
Change-Id: Iaec15fcd65f3983056df7d56d29118a516334cd9
Reviewed-on: https://pdfium-review.googlesource.com/14819
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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There are a number of functions in fx_gix.h/.cpp that take in a
pointer to a CGifContext as their first parameter. Moving these to be
methods in that class.
BUG=pdfium:902
Change-Id: I8c583ab9e42dda4241aa8a6f865408a94fa6d273
Reviewed-on: https://pdfium-review.googlesource.com/14670
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
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The core fix in this CL is a change to how LWZ decompression works, so
that when the min code table size and the color palette size are
different, color codes after the end of the defined color palette are
considered errors.
This CL also introduces a bunch of tweaks to the call return path,
since there were multiple locations where the GIF decode failing
status was being dropped on the floor, so the end widget would have a
bitmap with the default colour in it, instead of nothing.
BUG=chromium:616671
Change-Id: Id6f40d552dc24650c91e9903f710ff2fa63bc774
Reviewed-on: https://pdfium-review.googlesource.com/14630
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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This CL moves CFX_UnownedPtr to UnownedPtr and places in the fxcrt
namespace.
Bug: pdfium:898
Change-Id: I6d1fa463f365e5cb3aafa8c8a7a5f7eff62ed8e0
Reviewed-on: https://pdfium-review.googlesource.com/14620
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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This CL renames CFX_RetainPtr to RetainPtr and places in the fxcrt
namespace.
Bug: pdfium:898
Change-Id: I8798a9f79cb0840d3f037e8d04937cedd742914e
Reviewed-on: https://pdfium-review.googlesource.com/14616
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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Then set up the right dependencies for them.
BUG=chromium:765914
Change-Id: I036cd888c741927d5efe0d020c6676f169e7cbb1
Reviewed-on: https://pdfium-review.googlesource.com/14410
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Change-Id: I020b862619f3f93f71dbb027b9e799d78744f686
Reviewed-on: https://pdfium-review.googlesource.com/14391
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Change-Id: Icacf877e2b66ca7d49637dcf9eaec0f99bcdd8bb
Reviewed-on: https://pdfium-review.googlesource.com/14390
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Change-Id: I703321108712e8c4a11a8343ecf8b1a8804c1d1a
Reviewed-on: https://pdfium-review.googlesource.com/14352
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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Automated using git grep & sed.
Replace StringC classes with StringView classes.
Remove the CFX_ prefix and put string classes in fxcrt namespace.
Change AsStringC() to AsStringView().
Rename tests from TEST(fxcrt, *String*Foo) to TEST(*String*,
Foo).
Couple of tests needed to have their names regularlized.
BUG=pdfium:894
Change-Id: I7ca038685c8d803795f3ed02545124f7a224c83d
Reviewed-on: https://pdfium-review.googlesource.com/14151
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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Due to some of the size parameters for allocating space in Decode()
depending on the values produced by opj_decode(), this change was
causing misallocation of space, which in turn was causing illegal
reads/writes.
The issue with excessive memory usage that the original CL was trying
to change is less significant than the above mentioned problems, so
reverting this fix and looking for another solution to the
problem. This will re-open bugs https://crbug.com/754423 and
https://crbug.com/761005.
BUG=chromium:764177,chromium:754423,chromium:761005
Change-Id: I1cafac8a8117ec1e3bc32b31196bdec719d46477
Reviewed-on: https://pdfium-review.googlesource.com/13950
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
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BUG=chromium:761005
Change-Id: I538e49f1eeb32891b33677d8587d2bed110b1fc1
Reviewed-on: https://pdfium-review.googlesource.com/13692
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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This patch was authored by Ke Liu of Tencent's Xuanwu Lab.
BUG=762374
Change-Id: Icb3ee98fb4c399b871ccf11e9920af7caf51be11
Reviewed-on: https://pdfium-review.googlesource.com/13610
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Chris Palmer <palmer@chromium.org>
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BUG=chromium:762106
Change-Id: I714d69320cc4fb81d535f811c18d4ef91fec44d3
Reviewed-on: https://pdfium-review.googlesource.com/13212
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
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In the existing implementation of the JPX decoder, Init extracts the
header from the image and then immediately decompresses it. This is
problematic if it is a very large image that we won't be able to
allocate a bitmap for. The code has been changed to instead delay
decompression until the Decode method, since things like dest Bitmap
generation can be performed using just the header information.
There is also a bit of renaming/casting cleanup, because I was having
a hard time parsing what was a local vs member variable.
BUG=chromium:761005
Change-Id: I55a55c0be2f88a5352a6ca056c2a816137d7c749
Reviewed-on: https://pdfium-review.googlesource.com/13550
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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This CL removes the fx_basic.h header and fixes up includes as needed.
Change-Id: I49af32a8327bdbcda40c50a61ffbd75d06609040
Reviewed-on: https://pdfium-review.googlesource.com/12670
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
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